#!/usr/bin/env python3.3

#
#  Filename: e16.py
#  Author  : lukas singer
#
#  Comment : Created by createSolution.sh
#            Power digit sum
#

#import euler
#from euler import *

def pe16():
  print(sum(int(i) for i in str(2**1000)))

if __name__=="__main__":
  pe16()

